Apparatus for quenching semicoke



June 15, 1954 D. PETIT APPARATUS FOR QUENCHING SEMICOKE Filed April 15,1952 r9 7- TOEh/EY.

Patented June 15, 1954 UNITED sTArs r OFFICE 6 Claims.

This invention relates to apparatus for quenching coke. Morespecifically, the invention relates to apparatus for controlling thetemperature of semi-coke resultin from the low-temperature distillationof coal.

Similar apparatus may be used for controlling the temperatures of othermaterials, such as shale or lignite which has been subjected tolowtemperature distillation.

It is known that the semi-coke as it is discharged irom thelow-temperature distillation oven is readily ignitable.

In View of this, it is undesirable to place the coke in hoppers ortrucks without first reducing its temperature to a desired safe limitwhich limit varies according to the circumstances.

The apparatus of the present invention assures that the temperature ofthe semi-coke immediately after discharge from the oven is reduced belowthat temperature at which the semicoke is readily ignitable. Thisapparatus comprises a rotating chamber for semi coke into which aquantity of water is introduced from a regulated liquid supply system.The chamber is disposed in an inclined position for gravity unloading ofa charge from its lower end. The water supply is automaticallycontrolled by the discharge temperature of the semi-coke. Thetemperature of the semi-coke is regulated by a thermocouple or anothersimilar arrangement which regulates from a distance the introduction ofwater into the chamber. The vapors resulting from the quenching of thesemi-coke are removed through a flue after having passed through acyclone dust separator which separates the entrained dust. The rotatingchamber may be of any desired shape in serving as a mixer into which thewater is introduced.

The disclosed drawing is a vertical section of the apparatusschematically showing a suitable embodiment of the present invention.

Semi-coke is conducted by a conveyor l and a chute 2 into a hollowcylinder 3 rotated by a shaft 4, driven by a motor and gear means 5. Thecylinder 3 is provided on the inner periphery with angle irons or ironplates 5 which serve as bafiles to break up the semi-coke in such amanner as to assure its best contact with the water and also tofacilitate escape of the resulting steam. This cylinder is disposed inan inclined position for gravity unloading of a charge from its lowerend.

The water used for quenching the semi-coke is introduced into thecylinder through a nozzle 1 the rate of flow being regulated byregulator 8, controlled at a distance by a thermocouple 9, placedimmediately below the semi-coke outlet of the cylinder. Upon itsdischarge from the cylinder, the semi-coke passes over thisthermocouple, and the semi-coke is then collected by a conveyor 10. Whenthe temperature of the semi-coke at the outlet side of the cylinderrises, the thermocouple 9 actuates the regulator 8 and the amount ofwater introduced at l is increased accordingly.

On the other hand, if the amount of water is more than necessary to givethe proper temperature to the semi-coke, the thermocouple temperature isreduced and the amount of water introduced at nozzle i into the cylinderis decreased accordingly.

The vapors escape through a cyclone dust catcher ll Where dust isremoved before the vapors are discharged into the atmosphere through achimney I2.

I claim:

1. Semi-coke quenching apparatus for quenching semi-coke from a lowtemperature distillation oven comprising a rotating chamber disposed inan inclined position for gravity unloading of a charge of semi-coke fromits lower end, a liquid supply system communicating with said chamberand adapted to feed liquid to said chamber, and means for automaticallyregulating the flow of liquid to said chamber in accordance with thedischarge temperature of the semicoke.

2. Semi-coke quenching apparatus for quenching semi-coke from a lowtemperature distillation oven comprising a rotating chamber disposed inan inclined position for gravity unloading of a charge of semi-coke atits lower end, a liquid supply system communicating with said chamberand adapted to feed liquid to said chamber, means for automaticallyregulating the flow of liquid to said chamber in accordance with thedischarge temperature of the semi-coke, and means to remove dust fromthe vapors escaping from said chamber.

3. The quenching apparatus of claim 1, in which said rotating chamberfor semi-coke comprises a hollow cylinder with baflle plates attached toand extending continuously lengthwise irom end to end along the innerperiphery of the cylinder for dispersing the semi-coke and to facilitateescape of the resulting steam.

4. The quenching apparatus of claim 1, in which said means forautomatically regulating the flow of liquid to the chamber comprises aregulator connected to the liquid supply system and a thermocoupleconnected to the regulator and positioned at the semi-coke outlet sideof the chamber.

5. Semi-coke quenching apparatus for quenching semi-coke from a lowtemperature distillation oven comprising a hollow cylinder with baffleplates attached to the inner periphery of the cylinder for dispersingthe semi-coke, said cylinder disposed at an inclined position forgravity unloading of a charge of semi-coke at its lower end, a liquidsupply system communicating with said chamber and adapted to feed liquidto said chamber, a regulator connected to the liquid supply system and athermocouple connected to the regulator and positioned at the semi-cokeoutlet side of the chamber for automatically regulating the flow ofliquid to the chamber, and a cyclone dust catcher positioned near thecylinder for removing dust from the vapors escaping from said cylinder.

6. In combination with a semi-coke conveying means leading from alow-temperature distillation oven, a semi-coke quenching apparatuscomprising a rotating inclined chamber having its upper endcommunicating with said conveying apparatus and its lower end adapted tounload said coke that is gravity fed thereto, a liquid supply systemcommunicating with said chamber and adapted to feed liquid to saidchamber, and means for automatically regulating the flow of liquid tosaid chamber in accordance with the discharge temperature of thesemi-coke.

References Cited in the file of this patent UNITED STATES PATENTS

